Honeywell APT2000, APT2000TC-0-00, APT2000TC-0-IS, APT2000TC-H-00, APT2000TC-H-IS User Manual

APT2000 Series

70-82-25-96

MU1I-6251

Revision 1 – 03/00

2-Wire Toroidal

Conductivity Transmitters

User Manual

Software release: 1.x

TA-194.350-HWE01 210700

Copyright, Notices, and Trademarks

E Copyright 1999 by Honeywell Inc.

Revision 1 – 03/00

While this information is presented in good faith and believed to be accurate,
Honeywell disclaims the implied warranties of merchantability and fitness for a

particular purpose and makes no express warranties except as may be stated in

its written agreement with and for its customer.

In no event is Honeywell liable to anyone for any indirect, special or consequen­tial damages. The information and specifications in this document are subject to

change without notice.
Honeywell

Industrial Automation and Control
Automation College
1100 Virginia Drive
Ft. Washington, PA. 19034

Honeywell S. A.
Espace Industriel Nord
rue André Durouchez
80084 Amiens Cedex 2
France

Contacts

The following list identifies important contacts within Honeywell.

Organization Telephone Address

Honeywell Technical
Assistance Center

1-800-423-9883
(USA and Canada)

1100 Virginia Avenue
Fort Washington, PA 19034

Honeywell S.A. 33-3-22-54-56-56

(Europe)

80084 Amiens Cedex 2
France

Warning

Warning

Warning

Information

3

Safety Precautions

Be sure to read and observe the following requirements!

The APT2000TC-0(H)-00 Transmitter is approved for operation in safe areas and hazardous
locations DIV 2 (USA/Canada only).
Before connecting the Transmitter to a power supply unit, make sure that this is not capable
of outputting more than 40 Vdc (safe areas) / 30 Vdc (DIV 2).

The APT 2000PH-0(H)-IS Transmitter is approved for operation in hazardous locations
DIV 1 (USA/Canada) / Zone 1 (Europe).
Before connecting the Transmitter to a power supply unit, make sure that this is an associ­ated apparatus.

The measuring inputs of the APT 2000PH-0(H)-IS Transmitter may be led into Zone 0
(Europe).
However, be sure to observe the national regulations concerning Zone 0 applications.
The Transmitter itself is not approved for operation in Zone 0!

Whenever it is likely that the protection has been impaired, the Transmitter shall be made inoperative and
secured against unintended operation.
The protection is likely to be impaired if, for example:

❏ the Transmitter shows visible damage
❏ the Transmitter fails to perform the intended measurements
❏ after prolonged storage at temperatures above 70 °C
❏ after severe transport stresses

Before recommissioning the T ransmitter, a professional routine test must be performed. This test should be
carried out at our factory.

The Transmitter shall not be used in a manner not specified by this manual.

CAL

Note

Warning

CONF

CAL

Information

4

Information on this Instruction Manual

ITALICS are used for texts which appear in the APT2000TC Transmitter display.

Bold print is used to represent keys, e.g. CAL.

Keys for which the functions are explained are frequently shown in the
left-hand column.

Notes provide important information that should be strictly followed when using the Transmit­ter.

Warning means that the instructions given must always be followed for your own safety.
Failure to follow these instructions may result in injuries.

Mode Codes

After pressing CONF or CAL you can enter one of the following codes to access the desig-
nated mode:

CONF, 0000: Error info
CONF, 1200: Configuration
CONF, 5555: Current source

CAL, 0000: Cal info
CAL, 1001: Zero point calibration
CAL, 1015: Temp probe adjustment
CAL, 1 100: Cell factor calibration
CAL, 1 125: Input/adjustment of sensor factor
CAL, 2222: Test mode

Contents

5

Contents

Safety Precautions 3. . . . . . . . . . . . . . . . . . . . . .

Information on this Instruction Manual 4. . .

Mode Codes 4. . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Assembly 6. . . . . . . . . . . . . . . . . . . . . . . . . . .

Package Contents and Unpacking 6. . . .

Assembly 6. . . . . . . . . . . . . . . . . . . . . . . . . .

2 Installation, Connection

and Commissioning 10. . . . . . . . . . . . . . . . .

Proper Use 10. . . . . . . . . . . . . . . . . . . . . . . .

Overview of the

Conductivity Transmitter 1 1. . . . . . . . . . . . .

Terminal Assignment 12. . . . . . . . . . . . . . . .

Installation and Commissioning 13. . . . . . .

Typical Wiring 14. . . . . . . . . . . . . . . . . . . . . .

3 Operation 15. . . . . . . . . . . . . . . . . . . . . . . . . . .

User Interface 15. . . . . . . . . . . . . . . . . . . . . .

Display 16. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Keypad 16. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Functions 17. . . . . . . . . . . . . . . . . . . .

Outputs 18. . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuration 19. . . . . . . . . . . . . . . . . . . . . . .

Calibration 21. . . . . . . . . . . . . . . . . . . . . . . . .

Measurement 25. . . . . . . . . . . . . . . . . . . . . .

4 Diagnostics, Maintenance and Cleaning 26

Sensoface



, Sensocheck



26. . . . . . . . . .

Error Messages 26. . . . . . . . . . . . . . . . . . . .

Diagnostics Functions 28. . . . . . . . . . . . . . .

Maintenance and Cleaning 29. . . . . . . . . . .

5 Appendix 30. . . . . . . . . . . . . . . . . . . . . . . . . . .

Product Line 30. . . . . . . . . . . . . . . . . . . . . . .

Specifications 31. . . . . . . . . . . . . . . . . . . . . .

Type Examination Certificate 35. . . . . . . . .

Calibration Solutions 38. . . . . . . . . . . . . . . .

Concentration Curves 39. . . . . . . . . . . . . . .

Index 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Assembly

6

1 Assembly

Package Contents and Unpacking

Unpack the unit carefully and check the shipment for
transport damage and completeness.
The package contains:

–Front unit of Transmitter
–Lower case
–Short instruction sheet
–This instruction manual
–HART description

(only for Model APT2000TC-H-..)

–Bag containing:

➀ 2 plastic plugs ➆ 1 hinge pin
➁ 5 hexagon nuts ➇ 3 cable ties
➂ 3 Pg cable glands ➈ 3 filler plugs
➃ 1 rubber reducer ➉ 3 sealing rings
➄ 1 Pg plug

11 1 metal plate

➅ 4 set screws for conduit

12

1 jumper

Assembly

Fig. 1 Assembling the case

➀

(For sealing in case

of wall mounting)

➁

➂

➃

➄

➅

➆

(Can be inserted
from either side)

➇

➈

➉

11

For conduit mounting:
Place washer
between enclosure
and nut.

11

12

Assembly

7

80 [3.15]

32 [1.26]

72 [2.83]

6.2 [0.24]

approx. 14

84 [3.31]

42 [1.65]

Pg 13.5 (3 pcs.)

144 [5.67]

144 [5.67]

21

43 [1.69]

105 [4.13]

27

Control panel 1 – 22 mm

max. 25

78 [3.07]

27

Control panel cutout
138 x 138 mm (DIN 43700)

Panel-mount kit
consisting of:

4 screws
4 span pieces
4 threaded sleeves
1 seal

➀
➁
➂
➃

➃

➀

➁

➂

Holes for
post mounting

Holes for
wall mounting

(4 x)

(2 x)

[0.55]

[1.06]

[0.83]

[0.98]

[1.06]

[5.43 x 5.43]

[0.04 – 0.87]

Note: All dimensions

in mm [inches]

(not included in supply)

2 holes 21.5 mm dia. [8.47] for Pg 13.5

I

or 1/2 conduit

Fig. 2 Dimension drawing for Transmitter, mounting diagram and P/N 51205990-001 panel-mount kit

Assembly

8

horizontal post/

40–60 mm dia.

➀

➁

➂

51205989-001

(if required)

For vertical or
pipe mounting

Pipe-mount kit
consisting of:

4 self-tapping screws
1 pipe mounting plate

2 hose clamps with

➀
➁

➂

worm gear drive
to DIN 3017

[1.57–2.36]

protective hood

Fig. 3 P/N 51205988-001 pipe-mount kit

165 [6.5]

173 [6.81]

132 [5.2]

Fig. 4 P/N 51205989-001 protective hood for wall and pipe mounting

Assembly

9

280 [11.03]

7 [0.28]

➀ Recommended stripping lengths for

multi-core cables

➁ Recommended stripping length for

coaxial cable

➂ Pulling out the terminals using a

screwdriver (also see

➆)

➃

Cable laying in the Transmitter

➄ Connecting lines for loop current
➅ Cover for sensor and temperature

probe terminals

➆ Areas for placing the screwdriver to

pull out the terminals

➇ Connection of handheld terminal

➀

➁

➃

➄

Be sure not to

notch the cable
cores when stripping
the insulation!

Dimensions in mm [inches].

➄
➅

➆

➇

Coaxial cable

13 mm [0.5]

7 mm [0.28]

➂

Fig. 5 Installation information

Warning

Warning

Warning

Capabilities, Connection

10

2 Installation, Connection and Commissioning

Proper Use

The APT2000TC Transmitter is used for conductivity
and temperature measurement in chemical, pulp and
paper , biotechnology, food processing, pharmaceuti­cal, electroplating, and water/wastewater industries.
It can either be mounted on site or in a control panel.

The APT2000TC-0(H)-00
Transmitter is approved for opera­tion in safe areas and hazardous
locations DIV 2 (USA/Canada only).
Before connecting the Transmitter
to a power supply unit, make sure
that this is not capable of outputting
more than 40 Vdc (safe areas) /
30 Vdc (DIV 2).

The APT2000TC-0(H)-IS Transmit­ter is approved for operation in haz­ardous locations DIV 1 (USA/Can­ada) / Zone 1 (Europe).
Before connecting the Transmitter
to a power supply unit, make sure
that this is an associated appara­tus.

The measuring inputs of the APT
2000PH-0(H)-IS Transmitter may
be led into Zone 0 (Europe).
However, be sure to observe the
national regulations concerning
Zone 0 applications.
The Transmitter itself is not ap­proved for operation in Zone 0!

Capabilities, Connection

11

Overview of the Conductivity Transmitter

mS/cm,
% by wt, SAL

Temperature
Pt 100/1000/
NTC 100 kW

mA

APT2000TC Transmitter

➀

➁

➃

➂

Fig. 6 System functions of APT2000TC Transmitter

➀ Inputs for toroidal conductivity sensors
➁ Input for temperature probe
➂ Current loop 4 – 20 mA,

transports power to and output signal from the
transmitter,

with APT2000TC-H-.. Transmitter also for HARTr
communication

➃ Equipotential bonding (only with

APT2000TC-0(H)-IS Transmitter)

Capabilities, Connection

12

Terminal Assignment

8 7 6 5 4 2 1

3

T1

temp

n.c.

+ 11 10

4 to

+

9

output

–

HART



20 mA

supply/

do not

connect

toroidal

conductivity sensor

lo hilohi

send receive

WT

BL

YW

GN

shield

RD

–

Fig. 7 Terminal assignment of APT2000TC-0(H)-00 Transmitter

NI, Class 1, Div 2, Group A – D, T4

8 7 6 5 4 2 1

3

T1

temp

n.c.

+ 11 10

4 to

+

9

output

–

HART



20 mA

supply/ toroidal

conductivity sensor

lo hilohi

send receive

WT

BL

YW

GN

shield

RD

–

Fig. 8 Terminal assignment of APT2000TC-0(H)-IS T ransmitter

IS, Class I, Div 1, Group A – D, T4
II 2(1) G EEx ib [ia] IIC T6

Warning

Warning

Warning

Warning

Warning

Capabilities, Connection

13

Installation and Commissioning

Installation and commissioning of
the Transmitter may only be carried
out in accordance with this instruc­tion manual and per applicable local
and national codes. Be sure to ob­serve the technical specifications
and input ratings.

Before connecting the
APT2000TC-0(H)-00 Transmitter to
a power supply unit, make sure that
this is not capable of outputting
more than 40 Vdc (safe areas) /
30 Vdc (DIV 2).

Before connecting the
APT2000TC-0(H)-IS Transmitter
to a power supply unit, make sure
that this is an associated apparatus
(for input ratings refer to the Control
Drawing or the annex of the EC
Type Examination Certificate).

Do not use alternating current or
mains power supply!

When commissioning, a complete
configuration must be carried out.

For easier installation, the terminal strips are of a
plug-in design. The terminals are suitable for single
wires and flexible leads up to 2.5 mm

2

(AWG 14)
(see Pg. 9).
A connection example is shown on Pg. 14.

Warning

Note

Capabilities, Connection

14

Typical Wiring

Conductivity measurement with Honeywell
5000TC toroidal conductivity sensor

The Honeywell 5000TC toroidal conductivity sensor
is used to measure low to highest conductivity val­ues. It can be used for measurements in safe areas.

WHITE

BLUE

YELLOW

GREEN

RED

SHIELD

toroidal

cond. sensor

5421

3

temp

lohi lo hi

sendreceive

WT

BL

YW

GN

shield

RD

87

6

T1

T2

n.c.

Fig. 9 Conductivity measurement with Honeywell

5000TC toroidal conductivity sensor

The Honeywell 5000TC toroidal
conductivity sensor may only be
used in combination with the
APT2000TC-0(H)-00 Transmitter.

For special mounting conditions of
the sensor, the cell factor can vary
between 4.0 and 4.5. Therefore the
user should perform a wet calibra­tion of each new sensor to deter­mine the exact cell factor.

Settings for Honeywell 5000TC toroidal conductivity
sensor

Menu Setting

Temp probe conf 1200 Pt 1000
Cell factor cal 1100 4.44

Operation

15

3 Operation

User Interface

MEAS

Alarm LED

Keypad

Model designation

Rating plate

Status fields:

- Measuring mode

- Calibration mode

- Alarm

- Configuration mode

CAL ALARM CONF

CONF ENTER

CAL

"

"

Fig. 10 Front view of Transmitter

CAL

CONF

"

Y

ENTER

➔

CAL

ENTER

➔

CONF

ENTER

+

Y

"

Operation

16

Display

Mode code entry

Interval/

Response time

Hold state

active

Continue with

ENTER

Measurement symbols

Tempera-

ture

Loop

current

Alarm

setting

Senso­check



Calibration

Sensor

data

Sensoface



Wait

Display/

Process variable

Bar for
instrument status

Fig. 11 Display of Transmitter

Keypad

Start, end calibration

Start, end configuration

Select digit position
(selected position flashes)

Change digit

Prompt in display:
continue in program sequence,
Configuration:

Confirm entries, next
configuration step,
Measuring mode:

Display loop cur-

rent

Cal info, display cell factor and zero
point (see Pg. 25)

Error info, display last output error
message (see Pg. 25)

Start GainCheck



manual instru-

ment self-test (see Pg. 17)

+

Y

"

Operation

17

Safety Functions

Sensoface sensor monitoring

Sensoface



provides information
on the sensor condition. A sad
“Smiley” indicates that there is a
Sensocheck



message.

Sensocheck



signals a short cir­cuit of the primary coil and its lines
as well as an interruption at the
secondary coil and its lines. Senso­check



can be switched off. With

Sensocheck



switched off, no

friendly Smiley appears.

For more detailed information, see chapter “Diagnos­tic, Maintenance and Cleaning” (Pg. 26).

GainCheck



manual instrument self-test

Simultaneously pressing Y and "
starts the manual instrument self­test.

A display test is carried out, the software version is
displayed and the memory and measured value
transmission are checked.

Automatic instrument self-test

The automatic unit self-test checks the memory and
the measured-value transmission. It runs automati­cally in the background at fixed intervals.

Operation

18

Outputs

Current loop (4 to 20 mA)

The current loop transports power to and output sig­nals from the Transmitter. The current is controlled
by the process variable selected in the configuration.
The current characteristic can be configured as lin­ear or logarithmic curve for conductivity and resistiv­ity.
The current beginning and end can be set to repre­sent any desired value.
If LIN (linear characteristic) is chosen, the minimum
span is 5% of the selected process variable / mea­surement range. If LOG (logarithmic characteristic) is
chosen, the minimum span is one decade within the
chosen range.
To check connected peripherals (e.g. limit switches,
controllers), the loop current can be manually speci­fied (see Pg. 28).

HART



communication

The APT2000TC-H-.. Transmitter can be remote
controlled via HART



communication. It can be con­figured using a handheld terminal or from the control
room. Measured values, messages and instrument
identification can be downloaded at any time. This
allows easy integration also in fully automatic pro­cess sequences.

For more detailed information, refer to the HART



Command Specification.

Alarm

During an error message the alarm LED flashes.
Alarm response time is permanently set to 10 sec.

Error messages can also be signaled with a 22 mA
signal via the loop current (see Configuration,
Pg. 20).

CONF

Note

Operation

19

Configuration

The instrument arrives from the factory configured
and ready to operate as a conductivity transmitter.
This section provides detailed procedures for chang­ing operation values for specific applications.

Activate with CONF
change parameter with Y and ",
confirm/continue with ENTER,
end with CONF.

Mode code “1200”

During configuration the Transmitter
is in the Hold state, the loop current
is frozen.

When the configuration mode is exited, the Transmit­ter remains in the Hold state for safety reasons. This
prevents undesirable reactions of the connected pe­ripherals (e.g. limit switches, controllers) due to in­correct settings. The measured value and Hold are
displayed alternately. Now you can check whether
the measured value is plausible and specifically end
the Hold state with ENTER. After a relax time of
20 sec (for measured value stabilization) the Trans­mitter returns to measuring mode.

The configuration parameters are
checked during the input. In the
case of an incorrect input “ERR” is
displayed for 3 sec. The parame­ters cannot be stored with ENTER
until the input has been repeated.

Configuration parameters

Before attempting any changes refer to the parameter setup list shown below. This table presents the possible options and the factory settings.

Picto­graph

Parameter Choices Factory

setting

Process variable / meas. range
Selected process variable and

measuring range control loop cur-

rent, limit values and display.
Complete configuration required
after change.

oo.oo mS / ooo.o mS / oooo mS
ooo.o %
ooo.o SAL

ooo.o mS

Concentration
(only with %)

-01- NaCl (0 – 28 % by wt)

-02- HCl (0 – 17 % by wt)

-03- NaOH (0 – 22 % by wt)

-04- H2SO4(0 – 35 % by wt)

-05- HNO

3

(0 – 28 % by wt)

-06- H

2SO4

(95 – 99 % by wt)

-01-

Temperature display °C

°F

°C

Operation

20

Temperature probe Pt 100 / Pt 1000 /

NTC 100 kW

Pt 1000

T emperature compensation
(not with % and SAL)

OFF
LIN
NLF (natural waters)

OFF

Temperature coefficient
(only with tc LIN)

xx.xx %/K 02.00 %/K

Current characteristic
(not with % and SAL)

LIN
LOG

LIN

Current beginning (4 mA)
(only with LIN)

mS / % / SAL 000.0 mS

Current end (20 mA)
(only with LIN)

mS / % / SAL

100.0 mS

Current beginning (4 mA)
(only with LOG)

mS *

0.1 mS

Current end (20 mA)
(only with LOG)

mS *

100 mS

Hold state Last:Last current value

Fix: Current specified

Last

Hold value
(only with Fix)

xx.xx mA 21.00 mA

22 mA signal for error message ON / OFF OFF
Sensocheck



ON / OFF OFF

* 0.1 / 1 / 10 / 100 / 1000 mS
Configuration is cyclical. To stop, press CONF.

CAL

CAL

ENTER

Operation

21

Calibration

In the calibration mode the cell factor can be modi­fied in two ways. If the cell factor of the sensor in use
is known under consideration of the installation con­ditions, it can be entered directly. Furthermore, the
cell factor can be determined with a known calibra­tion solution under consideration of the temperature.

Activate with CAL,
confirm/continue with ENTER,
abort with CAL ➜ ENTER

During calibration the Transmitter is
in the Hold state. The loop current
is frozen.

When the calibration mode is exited, the Transmitter
remains in the Hold state for safety reasons. This
prevents undesirable reactions of the connected pe­ripherals (e.g. limit switches, controllers) due to in­correct settings. The measured value and Hold are
displayed alternately. Now you can check whether
the measured value is plausible and specifically end
the Hold state with ENTER or repeat calibration with
CAL. When you end the Hold state, the Transmitter
will return to measuring mode after 20 sec (mea­sured value stabilization).

Calibration by input of cell factor

Activate calibration by pressing the
CAL key.
Using the Y , " keys enter
mode code “1100” and then press
ENTER.

Using the Y , " keys enter the cell
factor. The lower display shows the
conductivity value.

A change in the cell factor also
changes the conductivity value.

When there has not been an entry
for approx. 6 sec, conductivity and
temperature are displayed alter­nately.

Press ENTER to confirm the cell
factor.

The Transmitter remains in the Hold
state. You can end the Hold state
with ENTER. After 20 sec (mea­sured value stabilization) the Trans­mitter returns to measuring mode.

Note

CAL

ENTER

Operation

22

Calibration with calibration solution

Be sure to use known calibration
solutions and the respective tempe­rature-corrected table values (see
Calibration Solutions, Pg. 38).

Activate calibration by pressing the
CAL key.
Using the Y , " keys enter
mode code “1100” and then press
ENTER.

Immerse the sensor in the calibra­tion solution.

After approx. 6 sec the lower dis­play alternately shows the conduc­tivity and temperature values. Read
the conductivity value correspond­ing to the displayed temperature
from the table of the used calibra­tion solution (for tables see Pg. 38).

Using the Y , " keys change the
cell factor until the display shows
the conductivity value from the
table.

Make sure that the temperature is
stable during the calibration proce­dure.

Press ENTER to confirm the cell
factor.

The Transmitter remains in the Hold
state. You can end the Hold state
with ENTER. After 20 sec (mea­sured value stabilization) the Trans­mitter returns to measuring mode.

Note

Note

CAL

ENTER

Note

Note

CAL

Operation

23

Zero point calibration in air

Zero point calibration is only re­quired when very low conductivity
values are to be measured.

Before you start calibration, remove
the sensor from the process, clean
it and dry it up.

Activate calibration by pressing the
CAL key.
Using the Y , " keys enter
mode code “1001” and then press
ENTER.

Using the Y , " keys modify the
zero point until the lower display
reads 0 mS. If required, change the
sign of the zero point!

When there has not been an entry
for approx. 6 sec, the lower display
alternately shows the zero-cor­rected conductivity value and the
temperature value.

Press ENTER to confirm the zero
point.

The Transmitter remains in the Hold
state. You can end the Hold state
with ENTER. After 20 sec (mea­sured value stabilization) the Trans­mitter returns to measuring mode.

Input and adjustment of sensor factor

This function should only be used
by experts. Incorrectly set parame­ters may go unnoticed, but change
the measuring properties.

The Transmitter comes with a preset sensor factor of

24.6 for the 5000TC sensor. Should you use another
sensor , you must enter another sensor factor or de­termine it using a comparison resistor. After that, you
can calibrate the sensor (see Pg. 21).

Resistance measurement in test
mode can only show the correct
value of the test resistor when the
sensor factor has been correctly
determined.

Activate calibration by pressing the
CAL key.
Using the Y , " keys enter
mode code “1125” and then press
ENTER.

Using the Y , " keys enter the
sensor factor of the sensor in the
main display .

If you do not know the sensor fac­tor, it can be determined using a
comparison resistor (recommended
resistance value: 100 W). The sen­sor factor must be adjusted until the
corresponding resistance value is
shown in the lower display.

ENTER

Note

CAL

ENTER

Operation

24

Press ENTER to confirm the sen­sor factor.

The Transmitter remains in the Hold
state. You can end the Hold state
with ENTER. After 20 sec (mea­sured value stabilization) the Trans­mitter returns to measuring mode.

Adjustment of temperature probe

This function should only be used
by experts. Incorrectly set parame­ters may go unnoticed, but change
the measuring properties.
Especially for Pt 100 temperature
probe, it is advisable to perform an
adjustment.

Activate calibration by pressing the
CAL key.
Using the Y , " keys enter
mode code “1015” and then press
ENTER.

Measure the temperature of the
process medium using an external
thermometer.

Using the Y , " keys enter the de­termined temperature value in the
main display. If you take over the
temperature value shown in the
lower display, the correction is with­out effect.

Press ENTER to confirm the tem­perature value.

The Transmitter remains in the Hold
state. You can end the Hold state
with ENTER. After a relax time of
20 sec (for measured value stabi­lization) the Transmitter returns to
measuring mode.

Note

Operation

25

Measurement

Measuring mode

In the measuring mode the main display shows the
configured process variable and the lower display
the temperature.

Cal info

With CAL and mode code “0000” you can activate
the cal info. Cal info shows the current calibration
data for approx. 20 sec. The 20 sec can be reduced
by pressing ENTER. During cal info the Transmitter
is not

in Hold state.

Error info

With CONF and mode code “0000” you can activate
the error info. Error info shows the most recent error
message for approx. 20 sec. After that the message
will be deleted. The 20 sec can be reduced by press­ing ENTER. During error info the Transmitter is not
in Hold state.

Hold state

The Transmitter will enter the Hold state under the
following conditions:

For calibration: Mode code 1001

Mode code 1015
Mode code 1100
Mode code 1125
Mode code 2222

configuration: Mode code 1200

Mode code 5555

The loop current is frozen at Last or Fix (configura­tion Pg. 20).
If the calibration or configuration mode is exited, the
Transmitter remains in the Hold state for safety rea­sons. This prevents undesirable reactions of the con­nected peripherals (e.g. limit switches, controllers)
due to incorrect settings. The measured value and
Hold are displayed alternately. Now you can check
whether the measured value is plausible and specifi­cally end the Hold state with ENTER. After a relax
time of 20 sec (for measured value stabilization) the
Transmitter returns to measuring mode.

During error conditions the Hold
state will not be active.

CONF

ENTER

Troubleshooting, Cleaning

26

4 Diagnostics, Maintenance and Cleaning

Sensoface, Sensocheck



Sensoface provides information

on the sensor condition. A sad
“Smiley” indicates that there is a
Sensocheck



message.

Sensocheck



signals a short circuit of the primary
coil and its lines as well as an interruption at the sec­ondary coil and its lines. Sensocheck



can be

switched off. With Sensocheck



switched off, no

friendly Smiley appears.

Error Messages

When one of the following error messages is output,
the Transmitter can no longer correctly determine the
process variable or output it via the loop current.

During an error message the alarm LED flashes. The
alarm response time is permanently set to 10 sec.

Error messages can also be signaled with a 22 mA
signal via the loop current (see Configuration,
Pg. 20).

Error info

With CONF and mode code “0000”
you can activate the error info.
Error info shows the most recent
error message for approx. 20 sec.
After that the message will be dele­ted. The 20 sec can be reduced by
pressing ENTER. During error info
the Transmitter is not

in Hold state.

Error
number

Display
(flashing)

Problem Possible causes

Err 01 Sensor - Wrong cell factor

- Outside measurement range

- SAL > 45 ‰

- Sensor connection or cable defective
Err 02 Sensor - Unsuitable sensor
Err 03 Temperature probe - Outside temp range

- Outside temp range for TC

- Outside temp range for SAL

- Outside temp range for concentration
Err 21 Loop current - Meas. value below configured current beginning

- Wrong configuration for current beginning (see Pg. 20)

Troubleshooting, Cleaning

27

Error
number

Possible causesProblemDisplay

(flashing)

Err 22 Loop current - Meas. value above configured current end

- Wrong configuration for current end (see Pg. 20)
Err 23 Loop current - Configured current span too small

(Difference between current beginning and end)

Err 33 Sensocheck



- Short circuit in primary coil

- Short circuit of cable
Err 34 Sensocheck



- Open circuit in secondary coil

- Cable interrupted
Err 98 System error - Configuration or calibration data defective; completely

reconfigure and recalibrate the Transmitter

- Measured value transmission defective

- Memory error in Transmitter program (PROM defective)

Err 99 Factory settings - EEPROM or RAM defective

- Error in factory settings

This error message normally should not occur, as the
data are protected from loss by multiple safety functions.
Should this error message nevertheless occur, there is
no remedy. The Transmitter must be repaired and recali­brated at the factory.

Warning

Troubleshooting, Cleaning

28

Diagnostics Functions

Cal info

Pressing CAL and entering mode code “0000” is
going to activate the cal info. Cal info shows the cur­rent calibration data for approx. 20 sec. During cal
info the Transmitter is not

in Hold state.

Test mode

Pressing CAL and entering mode code “2222” is
going to activate the test mode. In the test mode you
can check the measuring equipment with a resistor.
Sensoface



is disabled.

To do so, a comparison resistor is
looped through the sensor. The
comparison resistance value is indi­cated in the main display in kW.
When the resistance value exceeds
2 kW, the display shows “– – – –”.

R: e.g. 100 W

Pressing ENTER ends the test mode. The T ransmit­ter goes to Hold state.

Error info

Pressing CONF and entering mode code “0000” is
going to activate the error info. Error info shows the
most recent error message for approx. 20 sec. After
that the message will be deleted. During error info
the Transmitter is not

in Hold state.

Display loop current

Pressing ENTER in measuring mode displays the
loop current for a few seconds.

Current source

To check the connected peripherals (e.g. limit
switches, controllers), the loop current can be manu­ally specified.

In the current source mode the loop
current no longer follows the mea­sured value! It is manually speci­fied.
Therefore, it must be ensured that
the connected devices (control
room, controllers, indicators) do not
interpret the current value as a
measured value!

Pressing CONF and entering mode code “5555” is
going to activate the current source mode. Specify
the loop current using ", Y and ENTER. The actu­ally flowing loop current is shown in the lower dis­play.
Pressing CONF exits the current source mode
again.

GainCheck



manual instrument self-test

The manual instrument self-test is started by simulta­neously pressing Y and ".

A display test is carried out, the software version is
displayed and the memory and measured-value
transmission are checked.

Troubleshooting, Cleaning

29

Automatic self-test

The automatic self-test checks the memory and the
measured-value transmission. It runs automatically
in the background at fixed intervals.

Maintenance and Cleaning

Maintenance

The Transmitter contains no user repairable compo­nents. If problems persist even after reviewing sec­tion 4, please contact the factory.

Cleaning

To remove dust, dirt and spots, the external surfaces
of the Transmitter may be wiped with a damp, lint­free cloth. A mild household cleaner may also be
used if necessary .

Specifications

30

5 Appendix

Product Line

Units

Ref. No.

Toroidal Conductivity Trans­mitter for application in safe
areas or hazardous locations
DIV 2 (USA/Canada only)

APT2000TC-0-00

Toroidal Conductivity IS
Transmitter for application in
hazardous locations
DIV 1 (USA/Canada) / Zone 1
(Europe)

APT2000TC-0-IS

Toroidal Conductivity Trans­mitter with HART



commu­nication for application in safe
areas or hazardous locations
DIV 2 (USA/Canada only)

APT2000TC-H-00

Toroidal Conductivity IS
Transmitter with HART



com­munication, for application in
hazardous locations
DIV 1 (USA/Canada) / Zone 1
(Europe)

APT2000TC-H-IS

Mounting Accessories

Ref. No.

Pipe-mount kit 51205988-001
Panel-mount kit 51205990-001
Protective hood 51205989-001

Further Accessories

Ref. No.

HART



test socket, integrated in
Pg cable gland
(for APT2000TC-H-.. Transmitter
only)

51205991-001

Specifications

31

Specifications

APT2000TC-0(H)-00 Transmitter
Cond input

Input for Series 5000 toroidal conduc­tivity sensor

Process vari­able/ranges**

00.00 to 99.99 mS/cm

000.0 to 999.9 mS/cm

0000 to 9999 mS/cm
Concentration0.0 to 100.0 % by wt.
Salinity

0.0 to 45.0 ‰ (0 to 35 °C)

Accuracy***

< 1 % of meas. value ± 0.02 mS/cm

Sensor
monitoring

Sensocheck: monitoring of primary

and lines for short circuit and monitor-

ing of secondary for open circuit

(can be switched off)

Sensor stan­dardization

*

– Entry of cell factor with display

of conductivity and temperature
– Zero point adjustment
– Temperature probe adjustment
– Input of sensor factor

Permissible
cell factor

0.100 to 19.999

Permissible
sensor factor

1.00 to 99.99

Permissible
offset

± 0.5 mS/cm

APT2000TC-0(H)-IS Transmitter
Cond input

Input for Series 5000 toroidal conduc­tivity sensor

Process vari­able/ranges**

00.00 to 99.99 mS/cm

000.0 to 999.9 mS/cm

0000 to 9999 mS/cm
Concentration0.0 to 100.0 % by wt.
Salinity

0.0 to 45.0 ‰ (0 to 35 °C)

Accuracy***

< 1 % of meas. value ± 0.02 mS/cm

Sensor
monitoring

Sensocheck: monitoring of primary

and lines for short circuit and monitor-

ing of secondary for open circuit

(can be switched off)

Sensor stan­dardization

*

– Entry of cell factor with display

of conductivity and temperature
– Zero point adjustment
– Temperature probe adjustment
– Input of sensor factor

Permissible
cell factor

0.100 to 19.999

Permissible
sensor factor

1.00 to 99.99

Permissible
offset

± 0.5 mS/cm

Specifications

32

APT2000TC-0(H)-00 Transmitter
Temp input

Pt 100 / Pt 1000 / NTC 100 kW

Ranges

– NTC –10.0 to +130.0 °C

+14 to +266 °F

– Pt –20.0 to +150.0 °C

–4 to +302 °F
Resolution 0.1 °C / 1 °F
Accuracy < 0.5 K****
Temp com-

pensation

*

(Ref. temp
25 °C)

LIN 00.00 to 19.99 %/K
NLF Natural waters to

EN 27888 (0 to 36 °C)

Concentra­tion deter­mination

-01- NaCl 0-26.3 % by wt (0 °C) ...
0-28.1 % by wt (100 °C)

-02- HCl 0-17 % by wt (-20 °C) ...
0-17 % by wt (50 °C)

-03- NaOH 0-12 % by wt (0 °C) ...
0-22 % by wt (100 °C)

-04- H

2SO4

0-25 % by wt (-17 °C) ...
0-35 % by wt (110 °C)

-05- HNO

3

0-28 % by wt (-20 °C) ...
0-28 % by wt (50 °C)

-06- H

2SO4

95-99 % by wt (-10 °C) ...
95-99 % by wt (110 °C)

Display LC display, alarm LED
Loop current 4 to 20 mA, floating

22 mA for error message

*

supply voltage 14 to 40 V

Characteris­tic

*

Linear or logarithmic

Current error

< 0.3 % of current value ± 0.05 mA

APT2000TC-0(H)-IS Transmitter
Temp input

Pt 100 / Pt 1000 / NTC 100 kW

Ranges

– NTC –10.0 to +130.0 °C

+14 to +266 °F

– Pt –20.0 to +150.0 °C

–4 to +302 °F
Resolution 0.1 °C / 1 °F
Accuracy < 0.5 K****
Temp com-

pensation

*

(Ref. temp
25 °C)

LIN 00.00 to 19.99 %/K
NLF Natural waters to

EN 27888 (0 to 36 °C)

Concentra­tion deter­mination

-01- NaCl 0-26.3 % by wt (0 °C) ...
0-28.1 % by wt (100 °C)

-02- HCl 0-17 % by wt (-20 °C) ...
0-17 % by wt (50 °C)

-03- NaOH 0-12 % by wt (0 °C) ...
0-22 % by wt (100 °C)

-04- H

2SO4

0-25 % by wt (-17 °C) ...
0-35 % by wt (110 °C)

-05- HNO

3

0-28 % by wt (-20 °C) ...
0-28 % by wt (50 °C)

-06- H

2SO4

95-99 % by wt (-10 °C) ...
95-99 % by wt (110 °C)

Display LC display , alarm LED
Loop current

EEx ib IIC

4 to 20 mA, floating
22 mA for error message

*

supply voltage 14 to 30 V,
I

max

= 100 mA, P

max

= 0.8 W

Characteris­tic

*

Linear or logarithmic

Current error

< 0.3 % of current value ± 0.05 mA

Specifications

33

APT2000TC-0(H)-00 Transmitter
Start/End of

scale

*

As desired within ranges for
mS, %, SAL

Min. span LIN 5 % of selected range

LOG 1 decade

Current
source

3.8 mA to 22.00 mA

HART



com-

munication

(HART trans­mitter only)

Digital communication via FSK modu­lation of loop current, reading of de­vice identification, measured values,
status and messages
reading and writing of parameters

Explosion
protection

USA/Canada:
NI, Class I, Div 2, Group A – D, T4

Data
retention

> 10 years (EEPROM)

RFI suppres­sion

To EN 50081-1 and EN 50081-2

Immunity to
interference

To EN 50082-1 and EN 50082-2

Temperature Operating/ambient temp

–20 to +55 °C
Transport and storage temp
–20 to +70 °C

Enclosure Material: thermoplastic polyester, re-

inforced (polybutylene terephthalate)
Protection: IP 65
Color: bluish gray RAL 7031

Cable glands 3 breakthroughs for Pg 13.5

2 breakthroughs for NPT 1/2 “ or
Rigid Metallic Conduit

APT2000TC-0(H)-IS Transmitter
Start/End of

scale

*

As desired within ranges for
mS, %, SAL

Min. span LIN 5 % of selected range

LOG 1 decade

Current
source

3.8 mA to 22.00 mA

HART



com-

munication

(HART trans­mitter only)

Digital communication via FSK modu­lation of loop current, reading of de­vice identification, measured values,
status and messages
reading and writing of parameters

Explosion
protection

USA/Canada:
IS, Class I, Div 1, Group A – D, T4
Europe:
II 2G EEx ib [ia] IIC T6
CE 0032 TÜV 99 ATEX 1430

Data
retention

> 10 years (EEPROM)

RFI suppres­sion

To EN 50081-1 and EN 50081-2

Immunity to
interference

To EN 50082-1 and EN 50082-2

Temperature Operating/ambient temp

–20 to +55 °C
Transport and storage temp
–20 to +70 °C

Enclosure Material: thermoplastic polyester, re-

inforced (polybutylene terephthalate)
Protection: IP 65
Color: bluish gray RAL 7031

Cable glands 3 breakthroughs for Pg 13.5

2 breakthroughs for NPT 1/2 “ or
Rigid Metallic Conduit

Specifications

34

APT2000TC-0(H)-00 Transmitter
Dimensions

See Dimension drawings, Pg. 7 ff

Weight approx. 1 kg
* user defined

** displayed with 3 1/2 digits
*** ± 1 count
**** with Pt 100 < 1K, with NTC > 100 °C < 1 K

APT2000TC-0(H)-IS Transmitter
Dimensions

See Dimension drawings, Pg. 7 ff

Weight approx. 1 kg
* user defined

** displayed with 3 1/2 digits
*** ± 1 count
**** with Pt 100 < 1K, with NTC > 100 °C < 1 K

Certificate of Conformity

35

Type Examination Certificate

Certificate of Conformity

36

Certificate of Conformity

37

Calibration Solutions

38

Calibration Solutions

Potassium Chloride Solutions
Electrical Conductivity in mS/cm

Temperature
[°C]

Concentration

0.01 mol/l 0.1 mol/l 1 mol/l

0

0.776 7.15 65.41
5 0.896 8.22 74.14
10 1.020 9.33 83.19
15 1.147 10.48 92.52
16 1.173 10.72 94.41
17 1.199 10.95 96.31
18 1.225 11.19 98.22
19 1.251 11.43 100.14
20 1.278 11.67 102.07
21 1.305 11.91 104.00
22 1.332 12.15 105.94
23 1.359 12.39 107.89
24 1.386 12.64 109.84
25 1.413 12.88 111.80
26 1.441 13.13 113.77
27 1.468 13.37 115.74
28 1.496 13.62
29 1.524 13.87
30 1.552 14.12
31 1.581 14.37
32 1.609 14.62
33 1.638 14.88
34 1.667 15.13
35 1.696 15.39
36

15.64

Data source: K. H. Hellwege (Editor), H. Landolt, R. Börnstein: Zahlen-

werte und Funktionen .... Volume 2, Part. Volume 6

Data source: * K. H. Hellwege (Editor), H. Landolt, R. Börnstein: Zahlen-

werte und Funktionen .... Volume 2, Part. Volume 6

** Test solutions calculated according to IEC 746-3

Sodium Chloride Solutions
Electrical Conductivity in mS/cm

Temperature
[°C]

Concentration
saturated* 0.1 mol/l** 0.01 mol/l**

0

134.5 5.786 0.631
1 138.6 5.965 0.651
2 142.7 6.145 0.671
3 146.9 6.327 0.692
4 151.2 6.510 0.712
5 155.5 6.695 0.733
6 159.9 6.881 0.754
7 164.3 7.068 0.775
8 168.8 7.257 0.796
9 173.4 7.447 0.818
10 177.9 7.638 0.839
11 182.6 7.831 0.861
12 187.2 8.025 0.883
13 191.9 8.221 0.905
14 196.7 8.418 0.927
15 201.5 8.617 0.950
16 206.3 8.816 0.972
17 211.2 9.018 0.995
18 216.1 9.221 1.018
19 221.0 9.425 1.041
20 226.0 9.631 1.064
21 231.0 9.838 1.087
22 236.1 10.047 1.111
23 241.1 10.258 1.135
24 246.2 10.469 1.159
25 251.3 10.683 1.183
26 256.5 10.898 1.207
27 261.6 11.114 1.232
28 266.9 11.332 1.256
29 272.1 11.552 1.281
30 277.4 11.773 1.306
31 282.7 11.995 1.331
32 288.0 12.220 1.357
33 293.3 12.445 1.382
34 298.7 12.673 1.408
35 304.1 12.902 1.434
36

309.5 13.132 1.460

Concentration Curves

39

Concentration Curves

Conductivity [mS/cm]

700

600

500

400

300

200

100

0

0 5 10 15 20 25 30

Concentration [% by wt]

Concentration calculation error [% by wt]

< 0.5 < 2

100 C

°

91 C°

82 C

°

73 C°

63 C°

53 C°

46 C°

34 C°

25 C°

15 C°

10 C°

0 C°

Fig. 12 Concentration curves NaCl (configuration: concentration -01-)

Concentration Curves

40

Conductivity [mS/cm]

1200

1000

800

600

400

200

0

024681012

Concentration [% by wt.]

Concentration calculation error [% by wt]

< 0.2 < 1 < 2

14 16 18 20

–20 C°

–10 C°

50 C°

40 C°

30 C°
25 C°

20 C°

10 C°

0 C°

Fig. 13 Concentration curves HCl (configuration: concentration -02-)

Concentration Curves

41

Conductivity [mS/cm]

1600

1400

1200

1000

800

600

400

200

0

0

5101520

25

Concentration [% by wt]

Concentration calculation error [% by wt]

< 0.2

100 C°

90 C°

80 C°

70 C°

60 C°

50 C°

40 C°

30 C°

20 C°

10 C°

0 C°

Fig. 14 Concentration curves NaOH (configuration: concentration -03-)

Concentration Curves

42

Conductivity [mS/cm]

1600

1400

1200

1000

800

600

400

200

0

0

5101520

25 30

Concentration [% by wt]

< 0.5

100 C°

90 C°

80 C

°

70 C

°

60 C°

50 C°

40 C°

30 C°

20 C

°

–10 C°

10 C°

0 C°

35

1800

< 1

110 C°

Concentration calculation error [% by wt]

Fig. 15 Concentration curves H2SO4 (configuration: concentration -04-)

Concentration Curves

43

Conductivity [mS/cm]

1200

1000

800

600

400

200

0

0 5 10 15 20 25

30

Concentration [% by wt.]

< 0.2 < 1 < 2

50 C°

40 C°

30 C°

–20 C

°

–10 C

°

25 C°
20 C

°

10 C°

0 C°

Concentration calculation error [% by wt]

Fig. 16 Concentration curves HNO3 (configuration: concentration -05-)

Concentration Curves

44

Conductivity [mS/cm]

600

400

200

0

95.0 95.5 96.0 96.5

97.5

Concentration [% by wt]

Concentration calculation error [% by wt]

< 0.2

100 C°

90 C°

80 C°

70 C°

60 C

°

50 C°
40 C°

30 C°
20 C°

–10 C

°

10 C°

0 C

°

98.0

110 C°

300

500

98.5 99.0

100

97.0

Fig. 17 Concentration curves H2SO4 (range 95 to 99 % by wt), (configuration: concentration -06-)

Index

45

Index

, 26

22 mA signal for alarm, 18, 26

configuring, 20

A

Alarm, 18

response time, 26
Alarm LED, 26
Alarm via loop current, 18, 26

configuring, 20
Assembly, 6

C

Cal info, 25, 28
Calibration, 21

input of cell factor, 21

sensor factor adjustment, 23

temp probe adjustment, 24

with calibration solution, 22

zero point, in air, 23
Calibration data, display , 28
Calibration solutions, 38
Cell factor, calibration, 22
Cleaning, 29
Concentration curves, 39
Conductivity measurement, 25
Configuration, 19

Connecting

handheld terminal, 9

lines, 9
Connecting cable, fixing, 9
Current characteristic, configur-

ing, 20
Current loop

Hold state, 20

Hold value, 20
Current source, 28

D

Diagnostics functions, 28
Dimension drawings, 7
Display, 16

E

Error info, 25, 26, 28
Error message, last, 25, 26, 28
Error message via loop current,

18, 26

configuring, 20
Error messages, 26–29
Explosion protection, APT2000,

33

G

GainCheck, 17, 28

H

HART communication, 18
Hold state, 25

I

Installation, 13
Instrument self–test

automatic, 17
manual, 17

K

Keypad, 16

L

Loop current, 18

display, instantaneous, 28
frozen, 25

M

Maintenance, 29
Measuring mode, 25
Messages, Sensoface, 26
Mode code, 4
Mounting diagram, 7

O

Outputs, 18

P

Packing list, 6

Index

46

Pipe–mount kit, 8
Process variable, configuring, 19
Product line, 30
Protective hood, 8

S

Safety precautions, 3
Self–test

automatic, 29
manual, 28

Sensocheck, on or off, 20

Sensoface, 17, 26

diagnostics, 26

messages, 26
Sensor factor , adjustment, 23
Sensor monitoring, Sensoface, 26
Sensors, monitoring, 17
Smiley, 26
Software version, display , 17, 28
Specifications, 31
Stripping lengths, 9

T

Terminals, pulling out, 9
Test mode, 28
Type Examination Certificate, 35

U

User Interface, 15

W

Wiring example, 14

Sensing and Control
Honeywell Inc.
11 West Spring Street
Freeport, IL 61032
USA

Honeywell S. A.
Espace Industriel Nord
Rue André Durouchez
80084 Amiens Cedex 2
France